FR2322211A1 - Increasing the abrasion resistance of steel parts - by immersion in a mixt. of molybdenum disulphide, sulphuric acid and glycerol - Google Patents

Increasing the abrasion resistance of steel parts - by immersion in a mixt. of molybdenum disulphide, sulphuric acid and glycerol

Info

Publication number
FR2322211A1
FR2322211A1 FR7526181A FR7526181A FR2322211A1 FR 2322211 A1 FR2322211 A1 FR 2322211A1 FR 7526181 A FR7526181 A FR 7526181A FR 7526181 A FR7526181 A FR 7526181A FR 2322211 A1 FR2322211 A1 FR 2322211A1
Authority
FR
France
Prior art keywords
mixt
glycerol
steel
abrasion resistance
immersion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7526181A
Other languages
French (fr)
Other versions
FR2322211B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VERKHOVYKH PETR
Original Assignee
VERKHOVYKH PETR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VERKHOVYKH PETR filed Critical VERKHOVYKH PETR
Priority to FR7526181A priority Critical patent/FR2322211A1/en
Publication of FR2322211A1 publication Critical patent/FR2322211A1/en
Application granted granted Critical
Publication of FR2322211B1 publication Critical patent/FR2322211B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
    • C23C12/02—Diffusion in one step
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Chemically Coating (AREA)

Abstract

An abrasion resistance of steel surfaces is increased by (a) forming a mixt. contg. 20-80 g MoS2 and 1-5g H2SO4 per litre of glycerol, (b) heating the mixt. to 190-230 degrees C, and immersing the steel in the mixt. for 3-7 hrs. in the presence of brass. The process is esp. useful for treating the working surfaces of stamping and punching tools made of heat-resisting steel, e.g. for the prodn. of abrasive products. The brass acts as a catalyst for the decompsn. of the MoS2 and thus accelerates the formation of the abrasion-resistant film. The steel part to be treated is pref. placed in a brass gauze basket and this immersed in the coating mixt.
FR7526181A 1975-08-25 1975-08-25 Increasing the abrasion resistance of steel parts - by immersion in a mixt. of molybdenum disulphide, sulphuric acid and glycerol Granted FR2322211A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7526181A FR2322211A1 (en) 1975-08-25 1975-08-25 Increasing the abrasion resistance of steel parts - by immersion in a mixt. of molybdenum disulphide, sulphuric acid and glycerol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7526181A FR2322211A1 (en) 1975-08-25 1975-08-25 Increasing the abrasion resistance of steel parts - by immersion in a mixt. of molybdenum disulphide, sulphuric acid and glycerol

Publications (2)

Publication Number Publication Date
FR2322211A1 true FR2322211A1 (en) 1977-03-25
FR2322211B1 FR2322211B1 (en) 1978-12-01

Family

ID=9159321

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7526181A Granted FR2322211A1 (en) 1975-08-25 1975-08-25 Increasing the abrasion resistance of steel parts - by immersion in a mixt. of molybdenum disulphide, sulphuric acid and glycerol

Country Status (1)

Country Link
FR (1) FR2322211A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2322211B1 (en) 1978-12-01

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Legal Events

Date Code Title Description
ST Notification of lapse